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BOSTON MARATHON 2023

Matthew Gilson

Bib: 17666•M

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Top 48%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:14/mi
25:35
↑ 97↓ 3451.5%
10K· 6.21 mi
8:01/mi
50:29
↑ 79↓ 1380.4%
15K· 9.32 mi
8:02/mi
1:15:28
↑ 67↓ 78
20K· 12.43 mi
8:06/mi
1:40:37
↑ 106↓ 860.1%
Half· 13.11 mi
8:04/mi
1:46:07
↑ 19↓ 370.5%
25K· 15.53 mi
8:13/mi
2:06:03
↑ 66↓ 880.2%
30K· 18.64 mi
8:25/mi
2:32:11
↑ 181↓ 1480.2%
20M
8:26/mi
2:43:38
↑ 64↓ 500.2%
21M
8:56/mi
2:52:34
↑ 106↓ 241.6%
35K· 21.75 mi
8:09/mi
2:58:40
↑ 17↓ 861.7%
23M
8:23/mi
3:09:10
↑ 23↓ 630.6%
24M
8:11/mi
3:17:21
↓ 821.3%
40K· 24.85 mi
8:21/mi
3:24:29
↓ 200.3%
25.2M
9:05/mi
3:27:37
↑ 13↓ 160.2%
Finish· 26.22 mi
8:22/mi
3:36:09
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:07
Pace8:06 /mi
2nd Half
Distance13.11 mi
Time1:50:02
Pace8:24 /mi
📊Positive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:3025:358:1425:35
8:14
-
10K
6.21 mi11:41:2450:298:0724:54
8:01
-0:13
15K
9.32 mi12:06:231:15:288:0624:59
8:02
+0:01
20K
12.43 mi12:31:321:40:378:0625:09
8:06
+0:04
Half
13.11 mi12:37:021:46:078:065:30
8:04
-0:02
25K
15.53 mi12:56:582:06:038:0719:56
8:13
+0:09
30K
18.64 mi13:23:062:32:118:1026:08
8:25
+0:12
20M
20.00 mi13:34:332:43:388:1111:27
8:26
+0:01
21M
21.00 mi13:43:292:52:348:138:56
8:56
+0:30
35K
21.75 mi13:49:352:58:408:136:06
8:09
-0:47
23M
23.00 mi14:00:053:09:108:1310:30
8:23
+0:14
24M
24.00 mi14:08:163:17:218:138:11
8:11
-0:12
40K
24.85 mi14:15:243:24:298:147:08
8:21
+0:10
25.2M
25.20 mi14:18:323:27:378:143:08
9:05
+0:44
Finish
26.22 mi14:27:043:36:098:158:32
8:22
-0:43

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:01 /mi

Average Pace

8:15 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:24:05

94% of race

Time at Steady Pace

12:04

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:15 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:16:3025:358:1425:35
8:14
#15678
10K
6.21 mi11:41:2450:298:0724:54
8:01
#15274
15K
9.32 mi12:06:231:15:288:0624:59
8:02
#15101
20K
12.43 mi12:31:321:40:378:0625:09
8:06
#14837
Half
13.11 mi12:37:021:46:078:065:30
8:04
#14836
25K
15.53 mi12:56:582:06:038:0719:56
8:13
#14741
30K
18.64 mi13:23:062:32:118:1026:08
8:25
#14545
20M
20.00 mi13:34:332:43:388:1111:27
8:26
#14426
21M
21.00 mi13:43:292:52:348:138:56
8:56
#14336
35K
21.75 mi13:49:352:58:408:136:06
8:09
#14272
23M
23.00 mi14:00:053:09:108:1310:30
8:23
#14133
24M
24.00 mi14:08:163:17:218:138:11
8:11
#14039
40K
24.85 mi14:15:243:24:298:147:08
8:21
#13948
25.2M
25.20 mi14:18:323:27:378:143:08
9:05
#13931
Finish
26.22 mi14:27:043:36:098:158:32
8:22
#13954
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi15678105741057414717(Top 55%)10181(Top 67%)10181(Top 716%)
10K6.21 mi3.10 mi15274+40410436+13810436+13814902(Top 56%)10271(Top 68%)10271(Top 722%)
15K9.32 mi3.11 mi15101+17310354+8210354+8214717(Top 55%)10181(Top 67%)10181(Top 716%)
20K12.43 mi3.11 mi14837+26410239+11510239+11514184(Top 53%)9954(Top 66%)9954(Top 700%)
Half13.11 mi0.68 mi14836+110234+510234+514786(Top 56%)10203(Top 67%)10203(Top 718%)
25K15.53 mi2.42 mi14741+9510175+5910175+5914375(Top 54%)9917(Top 65%)9917(Top 697%)
30K18.64 mi3.11 mi14545+19610054+12110054+12113760(Top 52%)9555(Top 63%)9555(Top 672%)
20M20.00 mi1.36 mi14426+1199973+819973+8113155(Top 49%)9200(Top 61%)9200(Top 647%)
21M21.00 mi1.00 mi14336+909915+589915+5813011(Top 49%)9044(Top 60%)9044(Top 636%)
35K21.75 mi0.75 mi14272+649881+349881+3413129(Top 49%)9044(Top 60%)9044(Top 636%)
23M23.00 mi1.25 mi14133+1399808+739808+7312482(Top 47%)8683(Top 57%)8683(Top 611%)
24M24.00 mi1.00 mi14039+949746+629746+6212474(Top 47%)8620(Top 57%)8620(Top 606%)
40K24.85 mi0.85 mi13948+919691+559691+5512317(Top 46%)8473(Top 56%)8473(Top 596%)
25.2M25.20 mi0.35 mi13931+179677+149677+1412970(Top 49%)8750(Top 58%)8750(Top 615%)
Finish26.22 mi1.02 mi13954-239668+99668+914539(Top 55%)9508(Top 63%)9508(Top 669%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21story building
+97ft-345ft

Overall

14717

Males

10181

M55-59

10181

5K→10K

3.1 - 6.2 mi

Top 56%
×5story building
+79ft-138ft

Overall

14902

Males

10271

M55-59

10271

10K→15K

6.2 - 9.3 mi

Top 55%
×3story building
+67ft-78ft

Overall

14717

Males

10181

M55-59

10181

15K→20K

9.3 - 12.4 mi

Top 53%
×5story building
+106ft-86ft

Overall

14184

Males

9954

M55-59

9954

20K→Half

12.4 - 13.1 mi

Top 56%
×2story building
+19ft-37ft

Overall

14786

Males

10203

M55-59

10203

Half→25K

13.1 - 15.5 mi

Top 54%
×4story building
+66ft-88ft

Overall

14375

Males

9917

M55-59

9917

25K→30K

15.5 - 18.6 mi

Top 52%
×9story building
+181ft-148ft

Overall

13760

Males

9555

M55-59

9555

30K→20M

18.6 - 20.0 mi

Top 49%
×5story building
+64ft-50ft

Overall

13155

Males

9200

M55-59

9200

20M→21M

20.0 - 21.0 mi

Top 49%
×8story building
+106ft-24ft

Overall

13011

Males

9044

M55-59

9044

21M→35K

21.0 - 21.8 mi

Top 49%
×7story building
+17ft-86ft

Overall

13129

Males

9044

M55-59

9044

35K→23M

21.8 - 23.0 mi

Top 47%
×5story building
+23ft-63ft

Overall

12482

Males

8683

M55-59

8683

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

12474

Males

8620

M55-59

8620

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

12317

Males

8473

M55-59

8473

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

12970

Males

8750

M55-59

8750

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2story building
+22ft-21ft

Overall

14539

Males

9508

M55-59

9508

Passing Analysis

Category:
Athletes Passed
2485
Passed By
761
Net Change
+1724
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15678
5K → 10K554150+404#15678#15274
10K → 15K280107+173#15274#15101
15K → 20K32561+264#15101#14837
20K → Half3130+1#14837#14836
Half → 25K17984+95#14836#14741
25K → 30K26165+196#14741#14545
30K → 20M15334+119#14545#14426
20M → 21M12535+90#14426#14336
21M → 35K8319+64#14336#14272
35K → 23M17031+139#14272#14133
23M → 24M11218+94#14133#14039
24M → 40K11524+91#14039#13948
40K → 25.2M4023+17#13948#13931
25.2M → Finish5780-23#13931#13954
TOTALS2485761+1724
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing